Global Patent Index - EP 2371714 A3

EP 2371714 A3 20140319 - Non-circular aft nacelle cowling geometry

Title (en)

Non-circular aft nacelle cowling geometry

Title (de)

Nicht kreisförmige Heckgondelverkleidungsgeometrie

Title (fr)

Géométrie de carter de nacelle arrière non circulaire

Publication

EP 2371714 A3 20140319 (EN)

Application

EP 11160466 A 20110330

Priority

  • US 31904910 P 20100330
  • US 85125110 A 20100805

Abstract (en)

[origin: EP2371714A2] A nacelle (22) for a turbofan propulsion system is provided that extends along a centerline (24) and includes a forward cowling (36) and an aft cowling (38). To improve the fit of a turbofan propulsion system in the space between the wing and ground of a fixed-wing aircraft, the aft cowling (38) of the nacelle (22) is modified. The aft cowling (38) has a non-circular cross-sectional geometry disposed in a plane substantially perpendicular to the centerline (24). The non-circular cross-sectional geometry includes a radially recessed section (62) disposed between first and second curved sections (58, 60). The first and the second curved sections (58, 60) each have a radius (74, 76) that is greater than a radial distance (86) between the centerline and a center point (82) of the radially recessed section (62).

IPC 8 full level

B64D 29/02 (2006.01)

CPC (source: EP US)

B64D 29/02 (2013.01 - EP US); F01D 25/24 (2013.01 - US); F02C 3/10 (2013.01 - US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2371714 A2 20111005; EP 2371714 A3 20140319; EP 2371714 B1 20170802; EP 3263461 A1 20180103; EP 3263461 B1 20220504; US 2011243719 A1 20111006; US 2015247425 A1 20150903; US 9057286 B2 20150616; US 9995180 B2 20180612

DOCDB simple family (application)

EP 11160466 A 20110330; EP 17183378 A 20110330; US 201514676354 A 20150401; US 85125110 A 20100805